Bug 1478870 - Horizon won't load with OSP11 - Script timed out before returning headers: django.wsgi
Summary: Horizon won't load with OSP11 - Script timed out before returning headers: dj...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: puppet-horizon
Version: 11.0 (Ocata)
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: z2
: 11.0 (Ocata)
Assignee: Radomir Dopieralski
QA Contact: Arik Chernetsky
URL:
Whiteboard:
Depends On: 1478042 1479051 1479055 1479056 1479057 1479058 1496173
Blocks: 1479732 1481774 1485889 1485890 1485894
TreeView+ depends on / blocked
 
Reported: 2017-08-07 11:29 UTC by Radomir Dopieralski
Modified: 2020-12-14 09:22 UTC (History)
18 users (show)

Fixed In Version: puppet-horizon-10.3.1-2.el7ost
Doc Type: Bug Fix
Doc Text:
Some binary python modules used by Horizon were compiled with a flag that makes them use the simplified GIL state API. Since mod_wsgi uses sub-interpreters, and the simplified GIL state API is not re-entrant, this results in the mod_wsgi locking up and hanging, making the dashboard unavailable. Added "WSGIApplicationGroup %{GLOBAL}" to mod_wsgi configuration, which forces it to always use the main interpreter instead of sub-interpreters. With that option, mod_wsgi works correctly no matter what options were used to compile the binary python modules. The slight performance penalty is not noticeable.
Clone Of: 1478042
: 1479732 (view as bug list)
Environment:
Last Closed: 2017-09-13 21:43:17 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1573488 0 None None None 2017-08-07 11:28:59 UTC
Launchpad 1708655 0 None None None 2017-08-07 11:28:59 UTC
OpenStack gerrit 491459 0 'None' 'ABANDONED' 'Set WSGIProcessGroup=%{GLOBAL}' 2019-11-27 13:38:23 UTC
Red Hat Product Errata RHBA-2017:2721 0 normal SHIPPED_LIVE Red Hat OpenStack Platform 11.0 director Bug Fix Advisory 2017-09-14 01:39:22 UTC

Comment 1 Radomir Dopieralski 2017-08-07 13:56:09 UTC 
Upstream patch: https://review.openstack.org/#/c/491459/
Comment 5 errata-xmlrpc 2017-09-13 21:43:17 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2721
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